Browsing by Subject "temperature feedback control system"

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    Development of a Melt Pool Tracking Vision System for Laser Deposition
    (University of Texas at Austin, 2009-09) Sparks, Todd; Tang, Lie; Liou, Frank
    This paper chronicles the development of a vision system for tracking melt pool morphology in the laser metal deposition process. This development is to augment an existing temperature feedback control system. Monitoring both the temperature and shape of the melt pool is necessary because of the effects of local geometry on the cooling rate at the melt pool. Temperature feedback alone cannot accommodate this effect without complex process planning. The vision system’s hardware, software, and integration into the laser deposition system’s controller is detailed in this paper. Preliminary testing and the effects on deposition quality is also discussed.